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130047500 = 2254114729
BaseRepresentation
bin1111100000001…
…01111000001100
3100001201002122002
413300011320030
5231243010000
620523211432
73136246142
oct760057014
9301632562
10130047500
1167454680
1237676b78
1320c342ab
14133b3592
15b63c8d5
hex7c05e0c

130047500 has 60 divisors (see below), whose sum is σ = 310306920. Its totient is φ = 47280000.

The previous prime is 130047487. The next prime is 130047503. The reversal of 130047500 is 5740031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (130047503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25136 + ... + 29864.

It is an arithmetic number, because the mean of its divisors is an integer number (5171782).

Almost surely, 2130047500 is an apocalyptic number.

130047500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130047500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155153460).

130047500 is an abundant number, since it is smaller than the sum of its proper divisors (180259420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130047500 is a wasteful number, since it uses less digits than its factorization.

130047500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 130047500 is about 11403.8370735468. The cubic root of 130047500 is about 506.6413932069.

Adding to 130047500 its reverse (5740031), we get a palindrome (135787531).

The spelling of 130047500 in words is "one hundred thirty million, forty-seven thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 625 1100 1250 1375 2500 2750 4729 5500 6875 9458 13750 18916 23645 27500 47290 52019 94580 104038 118225 208076 236450 260095 472900 520190 591125 1040380 1182250 1300475 2364500 2600950 2955625 5201900 5911250 6502375 11822500 13004750 26009500 32511875 65023750 130047500